申请人:Luminescence Technology Corp.
公开号:US07282586B1
公开(公告)日:2007-10-16
The present invention discloses a dipyridine-based compound which can be used as electron-transporting and/or hole blocking material or phosphorous host in organic electroluminescence devices is disclosed. The mentioned dipyridine-based compound is represented by the following formula:
wherein R1 and R2 are identical or different, and R1 and R2 are independently selected from the group consisting of: hydrogen atom, aryl moiety, hetero cycle, multiple fused ring, multiple fused ring with hetero atom(s); A is selected from the following group:
wherein R3 and R4 are identical or different, R5 and R6 are identical or different, R7 and R8 are identical or different, R3, R4, R7, R8 are independently selected from the group consisting of: alkyl moiety and aryl moiety, and R5, R6 are independently selected from the group consisting of: alkyl moiety, aryl moiety and arylamine moiety.
本发明公开了一种以二吡啶为基础的化合物,可用作有机电致发光器件中的电子传输和/或阻挡孔的材料或磷宿主。所述的二吡啶基化合物由以下公式表示:其中R1和R2相同或不同,R1和R2独立地选自以下组:氢原子,芳基,杂环,多重融合环,带有杂原子的多重融合环;A选自以下组:其中R3和R4相同或不同,R5和R6相同或不同,R7和R8相同或不同,R3、R4、R7、R8独立地选自以下组:烷基基团和芳基基团,R5、R6独立地选自以下组:烷基基团,芳基基团和芳胺基团。